Due to Federal and State laws that govern the purchase, owning, and transportation of automatic knives, HK automatics will be sold only through authorized dealers. They are not available for purchase on this website; this webpage is for information only.

The HKHadron employs a switch operated blade which instantly deploys and retracts out-the-front for total control. Its compact and versatile design allows easy storage and quick response when needed. Choose from a Clip Point or Tanto blade shape with a heavy-duty machined aluminum handle available in multiple color options. The Hadron is designed and built for speed and reliability every time out.